login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A074625 as a simple table

na(n)
11
21
33
41
57
62
71
85
92
103
111
124
132
143
158
161
177
182
193
202401
215
221
2329
242
253
266
275
284
291
3010
312
323
339
345
354
367
371
3819
392
403
4113
425
434
447
4510
461
476
482
493
508
515
524
537
5418
5519
561
579
582
593
6024
615
624
637
6416
6521
6643
671
6813
692
703
712401
725
734
747
7549
7631213
779604
786
791
808
812
823
8310
845
854
867
8733
8822

[1,1,3,1,7,2,1,5,2,3,1,4,2,3,8,1,7,2,3,2401,5,1,
 29,2,3,6,5,4,1,10,2,3,9,5,4,7,1,19,2,3,13,5,4,7,
 10,1,6,2,3,8,5,4,7,18,19,1,9,2,3,24,5,4,7,16,21,
 43,1,13,2,3,2401,5,4,7,49,31213,9604,6,1,8,2,3,10,
 5,4,7,33,22]